学步园

 VB6中一个非常好用的读写Ini文件的模块
新建模块（建议不使用注册表）   命名为rwini
'ini文件在有回车换行符会出错，经过测试，汉字要小于86字节，英言文要小于143字节才能返回列表框。（这是我以前的code，是记录列表框内容的）  
Option   Explicit  
Public   iniFileName   As   String  
Public   Declare   Function   GetPrivateProfileInt   Lib   "kernel32 "   Alias   "GetPrivateProfileIntA "   (ByVal   lpApplicationName   As   String,   ByVal   lpKeyName   As   String,   ByVal   nDefault   As   Long,   ByVal   lpFileName   As   String)   As
  Long  
Public   Declare   Function   GetPrivateProfileString   Lib   "kernel32 "   Alias   "GetPrivateProfileStringA "   (ByVal   lpApplicationName   As   String,   ByVal   lpKeyName   As   Any,   ByVal   lpDefault   As   String,   ByVal   lpReturnedString   As  
String,   ByVal   nSize   As   Long,   ByVal   lpFileName   As   String)   As   Long  

Public   Declare   Function   WritePrivateProfileString   Lib   "kernel32 "   Alias   "WritePrivateProfileStringA "   (ByVal   lpApplicationName   As   String,   ByVal   lpKeyName   As   Any,   ByVal   lpString   As   Any,   ByVal   lpFileName   As   String)
  As   Long  

'****************************************获取Ini字符串值(Function)******************************************  

Function   GetIniS(ByVal   SectionName   As   String,   ByVal   KeyWord   As   String,   ByVal   DefString   As   String)   As   String  

Dim   ResultString   As   String   *   144,   Temp   As   Integer  
Dim   s   As   String,   i   As   Integer  
Temp%   =   GetPrivateProfileString(SectionName,   KeyWord,   " ",   ResultString,   144,   AppProFileName(iniFileName))  

'检索关键词的值  
If   Temp%   >   0   Then   '关键词的值不为空  
s   =   " "  
For   i   =   1   To   144  
If   Asc(Mid$(ResultString,   i,   1))   =   0   Then  
Exit   For  
Else  
s   =   s   &   Mid$(ResultString,   i,   1)  
End   If  
Next  
Else  
Temp%   =   WritePrivateProfileString(SectionName,   KeyWord,   DefString,   AppProFileName(iniFileName))  

'将缺省值写入INI文件  
s   =   DefString  
End   If  
GetIniS   =   s  
End   Function  

'**************************************获取Ini数值(Function)***************************************************  

Function   GetIniN(ByVal   SectionName   As   String,   ByVal   KeyWord   As   String,   ByVal   DefValue   As   Long)   As   Integer  

Dim   d   As   Long,   s   As   String  
d   =   DefValue  
GetIniN   =   GetPrivateProfileInt(SectionName,   KeyWord,   DefValue,   AppProFileName(iniFileName))  

If   d   <>   DefValue   Then  
s   =   " "   &   d  
d   =   WritePrivateProfileString(SectionName,   KeyWord,   s,   AppProFileName(iniFileName))  

End   If  
End   Function  

'***************************************写入字符串值(Sub)**************************************************  

Sub   SetIniS(ByVal   SectionName   As   String,   ByVal   KeyWord   As   String,   ByVal   ValStr   As   String)  

Dim   res%  
res%   =   WritePrivateProfileString(SectionName,   KeyWord,   ValStr,   AppProFileName(iniFileName))  

End   Sub  
'****************************************写入数值(Sub)******************************************************  

Sub   SetIniN(ByVal   SectionName   As   String,   ByVal   KeyWord   As   String,   ByVal   ValInt   As   Long)  

Dim   res%,   s$  
s$   =   Str$(ValInt)  
res%   =   WritePrivateProfileString(SectionName,   KeyWord,   s$,   AppProFileName(iniFileName))  

End   Sub  

' '这是我自已不知道怎样清除一个键(keyword)   时
写的一个清除字符串值的过程，是有write函数写入一个空的值实现的， 'Sub   DelIniS(ByVal   SectionName   As   String,   ByVal   KeyWord   As   String)  

'Dim   retval   As   Integer  
'retval   =   WritePrivateProfileString(SectionName,   KeyWord,   " ",   AppProFileName(iniFileName))  

'End   Sub  
'其实0&表示前面的一个被清除，我多写了一个“”，如果是清除section就少写一个Key多一个“”。  

'***************************************清除KeyWord "键 "(Sub)*************************************************  

Sub   DelIniKey(ByVal   SectionName   As   String,   ByVal   KeyWord   As   String)  

Dim   RetVal   As   Integer  
RetVal   =   WritePrivateProfileString(SectionName,   KeyWord,   0&,   AppProFileName(iniFileName))  

End   Sub  

'如果是清除section就少写一个Key多一个“”。  
'**************************************清除   Section "段 "(Sub)***********************************************  

Sub   DelIniSec(ByVal   SectionName   As   String)   '清除section  
Dim   RetVal   As   Integer  
RetVal   =   WritePrivateProfileString(SectionName,   0&,   " ",   AppProFileName(iniFileName))  

End   Sub  

'*************************************定义Ini文件名(Function)***************************************************  

'定义ini文件名  
Function   AppProFileName(iniFileName)  
AppProFileName   =   App.Path   &   "\ "   &   iniFileName   &   ".ini "  
End   Function  

#######################################################################

'用法:   首先   定义iniFileName= "文件名 "   不需要   加ini后缀  
'这就是说，你可以赋值给iniFileName就可以写入记录，而且你可以随时写入不同的ini文件(不管这个文件是否已存在），通过修改这个公用变量。

'然后       DelInikey（ByVal   SectionName   As   String,   ByVal   KeyWord   As   String）   清除键  

                    'DelIniSec(ByVal   SectionName   As   String))   清除部  
                    'SetIniN(ByVal   SectionName   As   String,   ByVal   KeyWord   As   String,   ByVal   ValInt   As   Long)   写入数  

                    'GetIniN(ByVal   SectionName   As   String,   ByVal   KeyWord   As   String,   ByVal   DefValue   As   Long)读取数  

                    'SetIniS   (ByVal   SectionName   As   String,   ByVal   KeyWord   As   String,   ByVal   ValStr   As   String)   写入字符  

                    'GetIniS(ByVal   SectionName   As   String,   ByVal   KeyWord   As   String,   ByVal   ValStr   As   String)   读取字符

调用例子如下：

Sub   RiniN()
Dim   Initemp   As   String
        Initemp   =   iniFileName   '暂存原来的Ini文件名
        iniFileName   =   App.EXEName   '写入到另外一个Ini文件，App.EXEName是你的程序的名程
        If   GetIniN( "lstBackup ",   "backupnumber ",   0)   <   lstBackUp.ListCount   Then

                '这里的第三个参数“0”表示在没有找到指定的键值时返回的缺省值为“0”
                SetIniN   "lstBackup ",   "backupnumber ",   lstBackUp.ListCount
                '......
        End   If
        iniFileName   =   Initemp   '继续使用原来的Ini文件
End   Sub 
 
建立与读取.ini文件  
 
作者:   cww　

　　虽然进入win95之後，一般读写ini文件被读写Registry所取代，但我们还是可以透过
win31的传统方式读写ini文件，以存程式目前的相关设定，而於下一次程式执行时再
读回来。目前建议使用GetSetting   SaveSetting的方式存於Registry中，不用目前
的方式。   储存程式的设定
'请於form中放3个TextBox，一个CommandBox
Private   Declare   Function   GetPrivateProfileString   Lib   "kernel32 "     _
      Alias   "GetPrivateProfileStringA "   (ByVal   lpApplicationName   As   String,   _

      ByVal   lpKeyName   As   Any,   ByVal   lpDefault   As   String,     _
      ByVal   lpReturnedString   As   String,   ByVal   nSize   As   Long,   _
      ByVal   lpFileName   As   String)   As   Long
Private   Declare   Function   WritePrivateProfileString   Lib   "kernel32 "     _

      Alias   "WritePrivateProfileStringA "   (ByVal   lpApplicationName   As   String,   _

      ByVal   lpKeyName   As   Any,   ByVal   lpString   As   Any,   _
      ByVal   lpFileName   As   String)   As   Long

Private   Sub   Command1_Click()
Dim   success   As   Long
success   =   WritePrivateProfileString( "MyApp ",   "text1 ",   Text1.Text,   "c:\aa.ini ")

'叁数一   Section   Name
'叁数二   於.ini中的项目
'叁数三   项目的内容
'叁数四   .ini文件的名称
success   =   WritePrivateProfileString( "MyApp ",   "text2 ",   Text2.Text,   "c:\aa.ini ")

success   =   WritePrivateProfileString( "MyApp2 ",   "text3 ",   Text3.Text,   "c:\aa.ini ")

End   Sub

Private   Sub   Form_load()
Dim   ret   As   Long
Dim   buff   As   String
buff   =   String(255,   0)
ret   =   GetPrivateProfileString( "Myapp ",   "text1 ",   "text1 ",   buff,   256,   "c:\aa.ini ")

'若.ini   MyApp中无text1，则采用叁数三的值
Text1.Text   =   buff
buff   =   String(255,   0)
ret   =   GetPrivateProfileString( "Myapp ",   "text2 ",   "text2 ",   buff,   256,   "c:\aa.ini ")

Text2.Text   =   buff
buff   =   String(255,   0)
ret   =   GetPrivateProfileString( "Myapp2 ",   "text3 ",   "text3 ",   buff,   256,   "c:\aa.ini ")

Text3.Text   =   buff
End   Sub